CN102822664A - Method of characterising scattering coloured pigment - Google Patents
Method of characterising scattering coloured pigment Download PDFInfo
- Publication number
- CN102822664A CN102822664A CN2011800171847A CN201180017184A CN102822664A CN 102822664 A CN102822664 A CN 102822664A CN 2011800171847 A CN2011800171847 A CN 2011800171847A CN 201180017184 A CN201180017184 A CN 201180017184A CN 102822664 A CN102822664 A CN 102822664A
- Authority
- CN
- China
- Prior art keywords
- pigment
- scattering property
- scattering
- colored pigment
- spectrum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000049 pigment Substances 0.000 title claims abstract description 252
- 238000000034 method Methods 0.000 title claims abstract description 86
- 238000010521 absorption reaction Methods 0.000 claims abstract description 56
- 238000000985 reflectance spectrum Methods 0.000 claims abstract description 28
- 238000012512 characterization method Methods 0.000 claims abstract description 9
- 238000001228 spectrum Methods 0.000 claims description 34
- 230000008878 coupling Effects 0.000 claims description 22
- 238000010168 coupling process Methods 0.000 claims description 22
- 238000005859 coupling reaction Methods 0.000 claims description 22
- 238000002360 preparation method Methods 0.000 claims description 13
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 12
- 238000001429 visible spectrum Methods 0.000 claims description 10
- 239000006229 carbon black Substances 0.000 claims description 8
- 229910052787 antimony Inorganic materials 0.000 claims description 5
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 claims description 5
- 238000004040 coloring Methods 0.000 claims description 4
- 238000002329 infrared spectrum Methods 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 238000004611 spectroscopical analysis Methods 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 3
- KECAIQNCFZTEBM-UHFFFAOYSA-N antimony;chromium Chemical compound [Sb]#[Cr] KECAIQNCFZTEBM-UHFFFAOYSA-N 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- DGXKDBWJDQHNCI-UHFFFAOYSA-N dioxido(oxo)titanium nickel(2+) Chemical compound [Ni++].[O-][Ti]([O-])=O DGXKDBWJDQHNCI-UHFFFAOYSA-N 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims description 3
- 230000003595 spectral effect Effects 0.000 claims description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 2
- 239000010941 cobalt Substances 0.000 claims description 2
- 229910017052 cobalt Inorganic materials 0.000 claims description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 2
- NXFVVSIQVKXUDM-UHFFFAOYSA-N cobalt(2+) oxido(oxo)chromium Chemical compound [Co++].[O-][Cr]=O.[O-][Cr]=O NXFVVSIQVKXUDM-UHFFFAOYSA-N 0.000 claims description 2
- LFSBSHDDAGNCTM-UHFFFAOYSA-N cobalt(2+);oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[O-2].[Ti+4].[Co+2] LFSBSHDDAGNCTM-UHFFFAOYSA-N 0.000 claims description 2
- PHGMGTWRSNXLDV-UHFFFAOYSA-N diethyl furan-2,5-dicarboxylate Chemical compound CCOC(=O)C1=CC=C(C(=O)OCC)O1 PHGMGTWRSNXLDV-UHFFFAOYSA-N 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims description 2
- 229910052595 hematite Inorganic materials 0.000 claims description 2
- FAHBNUUHRFUEAI-UHFFFAOYSA-M hydroxidooxidoaluminium Chemical compound O[Al]=O FAHBNUUHRFUEAI-UHFFFAOYSA-M 0.000 claims description 2
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 claims description 2
- 229910052596 spinel Inorganic materials 0.000 claims description 2
- 239000011029 spinel Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 abstract description 21
- 239000002245 particle Substances 0.000 abstract description 8
- 239000003973 paint Substances 0.000 description 66
- 239000004922 lacquer Substances 0.000 description 26
- 230000000694 effects Effects 0.000 description 16
- 239000000463 material Substances 0.000 description 15
- 238000005259 measurement Methods 0.000 description 12
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 10
- 230000002349 favourable effect Effects 0.000 description 9
- 239000003086 colorant Substances 0.000 description 8
- 239000012141 concentrate Substances 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000012937 correction Methods 0.000 description 6
- 238000002156 mixing Methods 0.000 description 5
- 239000000523 sample Substances 0.000 description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- 210000000988 bone and bone Anatomy 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 230000008033 biological extinction Effects 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 241001561902 Chaetodon citrinellus Species 0.000 description 2
- 241000872198 Serjania polyphylla Species 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 239000006071 cream Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000003908 quality control method Methods 0.000 description 2
- 238000002310 reflectometry Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 208000035126 Facies Diseases 0.000 description 1
- 244000188472 Ilex paraguariensis Species 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000002835 absorbance Methods 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910000389 calcium phosphate Inorganic materials 0.000 description 1
- 239000001506 calcium phosphate Substances 0.000 description 1
- 235000011010 calcium phosphates Nutrition 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 125000002080 perylenyl group Chemical group C1(=CC=C2C=CC=C3C4=CC=CC5=CC=CC(C1=C23)=C45)* 0.000 description 1
- CSHWQDPOILHKBI-UHFFFAOYSA-N peryrene Natural products C1=CC(C2=CC=CC=3C2=C2C=CC=3)=C3C2=CC=CC3=C1 CSHWQDPOILHKBI-UHFFFAOYSA-N 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001915 proofreading effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000000411 transmission spectrum Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/0081—Composite particulate pigments or fillers, i.e. containing at least two solid phases, except those consisting of coated particles of one compound
- C09C1/0084—Composite particulate pigments or fillers, i.e. containing at least two solid phases, except those consisting of coated particles of one compound containing titanium dioxide
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/41—Organic pigments; Organic dyes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/3577—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing liquids, e.g. polluted water
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/359—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using near infrared light
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/47—Scattering, i.e. diffuse reflection
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/47—Scattering, i.e. diffuse reflection
- G01N21/4738—Diffuse reflection, e.g. also for testing fluids, fibrous materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/55—Specular reflectivity
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
- C01P2006/62—L* (lightness axis)
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
- C01P2006/63—Optical properties, e.g. expressed in CIELAB-values a* (red-green axis)
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
- C01P2006/64—Optical properties, e.g. expressed in CIELAB-values b* (yellow-blue axis)
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
- G01J3/463—Colour matching
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Analytical Chemistry (AREA)
- Organic Chemistry (AREA)
- Composite Materials (AREA)
- Wood Science & Technology (AREA)
- Materials Engineering (AREA)
- Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Molecular Biology (AREA)
- Spectrometry And Color Measurement (AREA)
- Paints Or Removers (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
Abstract
The invention provides a method of characterising a scattering coloured pigment for use in the determination of the absorption and scattering coefficients of the scattering coloured pigment, the method comprising the step of obtaining a reflectance spectrum of a mixture of the scattering coloured pigment with a substantially non-absorbing scattering pigment at a plurality of different volume fractions wherein the substantially non-absorbing scattering pigment has a particle size greater than 0.6 micron. Also provided is a pigment characterisation system adapted to perform the method of the invention to characterise a scattering coloured pigment.
Description
Invention field
The present invention relates to be used to measure the method for sign scattering property colored pigment of absorption coefficient and the scattering coefficient of scattering property colored pigment.It also relates to color matching method, particularly the color matching method of colored pigment potpourri.The invention still further relates to the pigment characterization system that is used to implement this method.
Background of invention
Paint vehicle comprises the pigment that is dispersed in the lacquer base usually.Pigment can comprise i) scattered light and selectivity do not absorb weak scattering or the basically non-scattering property colored pigment of different wave length so that color to be provided of visible light basically, and ii) the different wave length of the basic nonabsorbable pigment of scattered light and iii) scattered light and selectivity absorption visible light is to provide the strong scattering property colored pigment of color.
Kubelka Munk equation is the radiation transfer equation that is usually used in the visible reflectance spectrum of exosyndrome material in paint vehicle and the pigment field.When describing the polycomponent pigment composition, the use of Kubelka Munk method is usually based on the equation of following form:
Wherein (K/S) is the ratio of Kubelka Munk absorption coefficient and scattering coefficient, k
i, s
iWith
Be absorption coefficient, scattering coefficient and the volume fraction of each pigment.Above-mentioned equation under the high-volume fractional of scattering property pigment because crowding effect and inaccurate and be a problem (for example, as far as conventional TiO 2 pigment, in the visible light of spectrum part, inaccuracy is obvious under greater than about 15% pigment volume concentration (PVC)).Crowding effect is owing to the high density of pigment particles in the designated volume reduces the scattering efficiency of scattering property pigment, so the relation between scattering efficiency and the pigment volume concentration (PVC) becomes non-linear.
As far as different pigment and different wave length, the particle volume concentration when crowding effect takes place is different.Along with the granularity raising or the wavelength reduction of pigment, the lowest volume mark that crowding effect comes into force required improves.Therefore, when considering the near infrared part of this spectrum, low pigment volume concentration (PVC) when being lower than the relation between the scattering efficiency and pigment volume concentration (PVC) at that time and being linear pigment volume concentration (PVC) and being present in than the visible light part of considering spectrum.
A kind of classic method that characterizes absorption coefficient and the scattering coefficient of pigment in the visible light part of spectrum is the reflectivity of measurement when incorporating in carbon black and the TiO 2 pigment cream.The near infrared that this method extends to spectrum partly is debatable, especially as far as all significant pigment of scattering and absorption.Along with related wavelength is increased near infrared, the opacity of conventional titania cream descends fast.
Therefore, obtain the thick system of optics near infrared, need more than it, will consider the pigment volume concentration mark of crowding effect in order to use conventional film thickness (< 300 nanometers).Under such volume fraction, the interpolation of the remarkable volume fraction of second scattering particle can cause the relation between the volume fraction
of the Kubelka Munk scattering coefficient S more complicated than can ignore crowding effect time the and second scattering particle.
Summary of the invention
According to a first aspect of the invention, we are provided for measuring the method for sign scattering property colored pigment of absorption coefficient and the scattering coefficient of scattering property colored pigment, and said method comprises step:
I) obtain the reflectance spectrum of scattering property colored pigment and the nonabsorbable scattering property pigment basically potpourri under many different volume fractions, wherein said basic nonabsorbable scattering property pigment has>0.6 micron granularity.
This method is favourable, because use coarsegrain nonabsorbable scattering property pigment to characterize because the reduction of crowding effect realizes accurate sign through reflectance spectrum.Some scattering property colored pigment has the granularity more much bigger than conventional TiO 2 pigment like composite inorganic colored pigment (CICP), nickel titanate antimony or metatitanic acid chromium antimony.This is the formation problem in the sign of scattering property colored pigment.For example, to be generally the granularity of 0.6-1.3 micron and conventional TiO 2 pigment be the 0.2-0.3 micron to the granularity of CICP titanate.But; 0.6 micron of TiO 2 particles (> through in white paste mixture, using megacryst granularity more) and unconventional TiO 2 pigment, the scattering coefficient and the absorption coefficient that can characterize such " coarsegrain " scattering property colored pigment better through the visible light and the near infrared part of spectrum.Choosing wantonly can be so that crowding effect have the megacryst titania of materially affect and the volume fraction preparation paste paint film of " coarsegrain " scattering property colored pigment.Make in this way, can accurately measure scattering coefficient and the absorption coefficient value of calculating subsequently and be used for color matching, and can predict their total sun reflection.
The method that can be used for measuring the granularity of pigment particles is the sedimentation of X-ray.
Definition pigment in electromagnetic wave spectrum, absorb respectively with the absorption coefficient of the degree of scattered light and scattering coefficient be known also known method by one of skill in the art; For example " Solar Spectral Optical Properties of Pigments – Part I:Model for Deriving Scattering and Absorption Coefficients From Transmittance and Reflectance Measurements "; People such as R Levinson, those mensuration of describing among Solar Energy Materials and Solar Cells 89 (2005) 319-349 (its whole contents is quoted through this and incorporated this paper into).
Basically non-absorbent pigment can have less than 50mm
-1, for example less than 30mm
-1Or less than 10mm
-1The mean absorption coefficient of (promptly in 400 nanometer to 760 nano-area) in the visible range of electromagnetic wave spectrum.
Scattering property pigment can have 50mm
-1Or bigger, 75mm for example
-1Or bigger, or 100mm
-1Or bigger in the visible and near-infrared region of electromagnetic wave spectrum the maximum scattering coefficient of (promptly in 400 nanometer to 3000 nano-area, for example in 400 nanometer to 2500 nano-area).
This method preferably includes step I i) obtain scattering coefficient as the said basic nonabsorbable scattering property pigment of the function of volume fraction and wavelength.
This method preferably includes the granularity of measuring scattering property colored pigment and having of selecting therewith to characterize in 0.5 micron of the granularity of scattering property colored pigment, most preferably the step of the nonabsorbable scattering property pigment of the granularity in 0.2 micron.This is favourable, because reduce crowding effect, this brings the improved sign of colored pigment, and this can be used for accurately matching colors and being used to calculate total sun reflection subsequently.
Said basic nonabsorbable scattering property pigment has the granularity of about 0.6 micron or bigger (as greater than 0.7 micron, greater than 0.8 micron, greater than 0.9 micron, greater than 1 micron, greater than 1.1 microns, greater than 1.2 microns, greater than 1.3 microns or greater than 1.4 microns).This granularity in one embodiment can be for greater than 0.6 micron and until 2 microns, or greater than 0.6 micron and until 1.5 microns, or greater than 0.6 micron and until 1.4 microns.
Said basic nonabsorbable scattering property pigment optimization comprises the coarsegrain TiO 2 pigment.Conventional TiO 2 pigment has 0.2 to 0.3 micron granularity.Therefore, the coarsegrain TiO 2 pigment has the granularity greater than this, about 0.6 micron or bigger (as greater than 0.7 micron, greater than 0.8 micron, greater than 0.9 micron, greater than 1 micron, greater than 1.1 microns, greater than 1.2 microns, greater than 1.3 microns or greater than 1.4 microns).This titanium dioxide coarseness in one embodiment can be for greater than 0.6 micron and until 2 microns, or greater than 0.6 micron and until 1.5 microns, or greater than 0.6 micron and until 1.4 microns.
Said scattering property colored pigment preferably granularity greater than 0.6 micron (as greater than 0.7 micron; Greater than 0.8 micron, greater than 0.9 micron, greater than 1 micron; Greater than 1.1 microns; Greater than 1.2 microns, greater than 1.3 microns or greater than 1.4 microns), for example greater than 0.6 micron and until 1.5 microns or greater than 0.6 micron and until 1.4 microns coarsegrain pigment; Said scattering property colored pigment normally granularity is 0.6 to 1.3 micron a coarsegrain pigment.
Said scattering property colored pigment is preferably selected from: the composite inorganic colored pigment; Nickel titanate antimony; Metatitanic acid chromium antimony; Manganese titanate antimony; The siderochrome palm fibre; Chrome green-Hei haematite; Aluminic acid cobalt blue spinel; The cobalt titanate chlorospinel; With the cobalt chromite chlorospinel.
This method is specially adapted to the accurate sign of coarsegrain pigment, because use the basic nonabsorbable scattering property of coarsegrain pigment (TiO for example
2) the reduction crowding effect.This is favourable, because the granulometric facies of the granularity of said scattering property colored pigment and said nonabsorbable scattering property pigment are worked as.This has come to light and has allowed in wide wavelength coverage, in near-infrared wavelength, accurately characterizes scattering property colored pigment especially, because crowding effect reduces.
Preferably at least in visible spectrum and ultrared wavelength, most preferably in 300 nanometer to 2500 nanometer wavelength range, measure the reflectance spectrum of scattering property colored pigment.
This method preferably includes step:
Iii) under many different volume fractions, obtain absorption coefficient as the weak scattering property black pigment of the function of wavelength; With
Iv) obtain the further reflectance spectrum of said scattering property colored pigment and the said black pigment potpourri under many different volume fractions.
Weak scattering property pigment can be to have less than 40mm
-1, for example less than 20mm
-1Or less than 10mm
-1The pigment of the maximum scattering coefficient of (promptly in 400 nanometer to 3000 nano-area, for example in 400 nanometer to 2500 nano-area) in the visible/near-infrared region of electromagnetic wave spectrum.
Said weak scattering property black pigment is carbon black preferably.Other weak scattering property black pigment can comprise boneblack (10% carbon black+84% calcium phosphate), copper-chrome black (CuCr
2O
4), synthetic magmetite (Fe
3O
4MAG) is with perylene is black.
Measure the absorption coefficient of weak scattering property black pigment under the preferred wavelength in 300 to 2500 nanometer range at least.
Step (iii) preferably comprises the measurement that collimates with the diffusion transmitted spectrum.This is favourable, can estimate absorption coefficient through the extinction coefficient that records because it can be verified.Step (iii) is particularly related to the repeatedly measurement of under different volumes mark (having the linear relationship of scattered quantum and volume fraction at this), carrying out transmitted spectrum.
Said reflectance spectrum and said further reflectance spectrum preferably use the optical thick layer of potpourri to obtain.
This method preferably includes step
V) merge said reflectance spectrum and further reflectance spectrum and calculating Kubelka Munk absorption coefficient and scattering coefficient as the scattering property colored pigment of the function of scattering property colored pigment volume fraction and wavelength.
This is favourable, because said reflectance spectrum provides the accurate sign of scattering property colored pigment, this produces exact K ubelka Munk absorption coefficient and scattering coefficient, particularly in the near infrared part of this spectrum.
This method preferably includes step
(coefficient determination that calculates v) is in the required scattering property colored pigment volume fraction of coupling target reflection spectrum on spectroscopy vi) to use step.
Therefore, this method comprises the method for color matching that can accurately mate color of object.This method is favourable, because owing to can in wide wavelength coverage, reliably characterize scattering property colored pigment, can match colors more accurately.In addition, this method can be measured the coarsegrain scattering property colored pigment volume fraction that realizes that color matching is required before the preparation pigment composition.
Therefore, this method can comprise step
(vii) the WT-MSR programming is prepared preparation with the volume fraction that basis calculates.
Be preferably different colored pigment repeating step (i), (iv) and (v) the & step (vi) comprises the volume fraction of measuring each colored pigment with the coupling color of object.
Preferably the resolution with basic 10 nanometers obtains reflectance spectrum.
This method preferably include calculating as the colored pigment of the function of film thickness in step for the total sun reflection under the definite volume fraction of coupling color of object.This method preferably includes the step of the total sun reflection of calculating at least a portion visible spectrum and infrared spectrum.Especially in 300 to 2500 nanometer wavelength range.
According to a second aspect of the invention, we provide the pigment characterization system of the method for the first aspect that is fit to embodiment of the present invention with sign scattering property colored pigment.
This optimum system choosing comprises the color of object matched element that is fit to the control WT-MSR; Said color of object matched element is fit to use the characterization information of scattering property colored pigment to measure the required volume fraction of coupling color of object, and said color of object matched element also is fit to the control WT-MSR to make the coloring matter of coupling color of object.
This optimum system choosing comprises comparator, and it is fit to measure the spectral quality of coloring matter and they and color of object are compared, and if in predetermined threshold, do not detect coupling, the concentration of regulating colored pigment is to obtain more approaching coupling.
This optimum system choosing comprises and is adapted at using at least a portion visible spectrum and the infrared spectrum said reflectance spectrum to calculate total sun reflection counter of total sun reflection.Said total sun reflection counter is particularly suitable in 300 to 2500 nanometer wavelength range, calculating.This is favourable, because said total sun reflection counter can predict accurately how lacquer shows in daylight.This is particularly useful for the cool colour lacquer.
For example only provide detailed description of the present invention now with way of example with reference to accompanying drawing, wherein:
Detailed description of the drawings
Fig. 1 shows the process flow diagram of first embodiment of the method for diagram first aspect of the present invention;
Fig. 2 shows the absorption coefficient vs. wavelength graph of black pigment; With
Fig. 3 shows the process flow diagram of the system implementation scheme of diagram second aspect of the present invention.
The present invention relates to through the volume required mark of measuring colored pigment or the method that concentration makes the color-match color of object.In addition, this method do not need to regulate repeatedly concentration just can with the device accurate copy colors to reach correct color matching.This is particularly useful in system lacquer field, and it is favourable wherein making selected pigment coupling color of object exactly.Especially, method disclosed herein is important preceding step of production and the loss that therefore can reduce time and materials.
This method can characterize selected pigment, and consequently they can accurately measure to form paint vehicle or the plastics with the color of accurately mating with required color of object with the lacquer base.This paint vehicle and plastics comprise megacryst titania and megacryst scattering property colored pigment usually, like CICP.Through characterizing colored pigment that mixes with weak scattering property black pigment and scattering coefficient and the absorption coefficient of colored pigment that mixes with megacryst granularity nonabsorbable scattering property pigment through sign, realize accuracy to obtain this colored pigment with known scattering coefficient with known absorbing coefficient.
With reference to Fig. 1, step 10 shows the step of acquisition as the absorption coefficient of the weak scattering property black pigment of the function of wavelength.This absorption coefficient is Kubelka Munk absorption coefficient particularly.This absorption coefficient records to selected black pigment, or it possibly need to use following method to derive.
Prepare weak scattering property black pigment through forming the black dye concentrate, it is carbon black in this example.Through 350 gram 60%Synocryl 826S, 20g xylene and 40 gram Disperbyk 163 are claimed in 1 liter of paint can, form concentrate.Add 40 gram charcoal blacks and 2000 gram 6mm steel balls then, like Potters Industries Inc with Ballotini those that sell of running after fame, to help dispersion.Lid with clip and plastic adhesive tape standing tank.Then this potpourri shake is disperseed to guarantee component fully.This can use Vib., realizes 60 minutes altogether like " Red Devil " Vib. of Red Devil Equipment Company.Then the black dye concentrate is poured out from bead and directly claimed like hereinafter in greater detail in the resin solution.
Through claiming in the suitable paint can preparation black paint with 72 gram black dye concentrates and 779.2 gram 60%Synocryl 826S.Minimum 2 hours of this jar of fixed cover and shake and rotation or even until paint vehicle.
Then this paint vehicle is applied in the substrate.At first, through with the acetone wiping with Melinex (RTM) diaphragm (DuPont manufacturing) degreasing, place then on the rubber stamp bed.One beach paint vehicle is placed this film top and uses steadily action to smear with No.9 coiling applicator, make its bone dry or baking under proper temperature.Use No.3 and 0 applicator to repeat said procedure.We obtain to have three samples of different film thicknesses thus.Can calculate film thickness as follows.After drying is accomplished, the sample cutting is produced the size sample easily with known area, with this samples weighing, these plates are ready for their transmission measurement thereupon.Be described below carry out transmission measurement after, remove paint film with acetone.Then the Melinex square is weighed again,, measure paint film weight through from original weight, reducing.Use the proportion and the sample area of this film weight and dry paint, calculate film thickness.
In the frequency range that contains ultraviolet ray, visible spectrum and infrared region, promptly about 300 to 2500 nanometers are with 10 nanometer resolutions record collimation and diffuse transmission spectrum.Suitable spectrometer is the Cary 5000UV-VIS-NIR spectrometer that Varian Inc makes.Measure in these three samples each respectively to obtain the reading under different-thickness.Fig. 2 shows an instance of gained spectrum.
Relatively the transmitted spectrum of collimation and diffuse transmission measurement is minimum to the influence of the delustring that records to guarantee pigment scatter then.If like this, think and to estimate absorption coefficient through extinction coefficient.If relatively disclosing obviously not conforming between absorption coefficient and the extinction coefficient between collimation and diffuse transmission are measured selected different more unscattered black pigments.
Percent transmission measured value (% transmission) by top acquisition uses equation to calculate the Kubelka Munk absorption coefficient of black pigment then:
Calculate the Kubelka Munk absorption coefficient A of pigment then by transmission absorption coefficient (TAC)
Black, TAC is by absorptivity, film thickness T and black pigment volume fraction V
BlackThe use equation obtains
With
A
Black=2 * TAC (3)
Can repeat this program to the preparation of the black pigment that contains the different volumes mark with the linear relationship between inspection absorptivity and the volume fraction.For example, as far as carbon black, can use 0.01,0.005 and 0.001 volume fraction.
Calculating requires preparation to have one group of gray paint of basic nonabsorbable scattering property pigment of the volume fraction that contains certain limit of the black pigment of fixed volume mark as the Kubelka Munk scattering coefficient of the nonabsorbable scattering property pigment of the function of wavelength and nonabsorbable pigment volume concentration mark.
Calculate to measure as stated as the quality of the black pigment of lacquer preparation with for the quality of the nonabsorbable scattering property pigment that one group of gray paint with nonabsorbable scattering property pigment volume concentration mark of 0.05,0.1,0.15,0.2,0.25,0.3,0.35 and 0.4 need sneak into is provided.
Weigh up the black pigment and the nonabsorbable scattering property pigment of required quality for each gray paint.Mix required combination.Can use any high-speed dispersion mixer that is used for paint industry.This gray paint is ready to be applied in the substrate at present.
Each gray paint of one beach is placed on the opaque drawing and uses steadily action to smear with No.9 coiling applicator.Make its bone dry subsequently or baking under proper temperature.
Use spectrometer with basic 10 nanometer resolutions from 300 to 2500 nanometers record reflection percentage.As stated, Cary 5000UV/Vis/NIR spectrometer or any similar device of being furnished with 150mm diameter integrating sphere are suitable.On the black and white part of opaque drawing, measure.Relatively on the black region with white portion on spectrum thick to guarantee paint film optics in whole wavelength coverage.Therefore, if do not detect the difference of the spectrum on the black and white zone, this enamelled coating " optics is thick ".If the difference of detecting, the thickness that improves layer is until not detecting difference.Therefore, the film that optics is thick has identical reflectance spectrum when in the black and white substrate, measuring.
To the nonabsorbable scattering property pigment volume concentration mark duplicate measurements of this scope to characterize crowding effect to scattering.
Can carry out the calculating of the ratio between Kubelka Munk scattering coefficient and the absorption coefficient by the reflection percentage that records with this spectrum.
First step in this calculating is to use the Saunderson equation to proofread and correct the reflection percentage (% reflection) that records for boundary effect.
Then by the reflection percentage R that proofreaies and correct
Proofread and correctCalculate the Kubelka Munk absorption coefficient of gray paint and the ratio (K/S) of Kubelka Munk scattering coefficient
g
As far as black pigment, volume fraction in the dry paint
and absorption coefficient are known.We can suppose that this absorption is absorbed as the master with black pigment in the 410-2500 nanometer wavelength range, so we can estimate the Kubelka Munk absorption coefficient K of gray mixture as follows
g
K wherein
bIt is the Kubelka Munk absorption coefficient of black pigment.We can adopt this scope, because said basic nonabsorbable scattering property pigment, i.e. TiO
2Be strong (i.e. " black ") that absorbs below 400 nanometers, so carbon black no longer account for leading.Therefore, provide scattering coefficient S as follows
g:
Calculating is in a series of wavelength and the volume fraction of nonabsorbable pigment
Under S
gUnder each wavelength, S
gRight
The dependence match to cubic polynomial.
This data set also can confirm in the dry paint nonabsorbable pigment volume concentration mark---it is at following approximation relation
All effective in the whole wavelength coverage of 410-2500 nanometer.
The volume fraction dependence of match to this polynomial Kubelka Munk scattering coefficient is inserted this scattering function in allowing under any fractional pigment volume number.
For calculating K ubelka Munk scattering coefficient and absorption coefficient, the colored pigment that will characterize be merged in black paint and the white paint and paint film in carry out reflection ratio measuring.
This step comprises that preparation contains one group of paint vehicle of colored pigment of black pigment and a series of volume fractions of predetermined mark.
As far as easily dispersible pigment, this pigment can add in the lacquer base with powder type in mixing tank.As far as the more difficult colored pigment that disperses, method manufacturing and the shake coloring agent concentrate at first black pigment described according to preceding text.In mixing tank, the coloring agent concentrate of required quality is added in the lacquer base then.
Calculate black paint (preparation has been detailed hereinbefore) and for the quality of the colored pigment that one group of paint vehicle with colored pigment volume fraction of 0.01,0.02,0.05 and 0.07 need sneak into is provided.Those skilled in the art are familiar with this calculating.As known or recording in the absorptivity measuring process, select volume fraction in the pigment volume concentration mark, to be linear with the scattering coefficient of guaranteeing to record.
As far as every kind of lacquer, weigh up the amount of colored pigment and black paint and add in the jar, use suitable diverting device (for example high speed dispersion device) to mix then about 2.5 minutes.Add the black paint of additional surplus then and further mix this potpourri (for example about 2 minutes).This paint vehicle is ready to apply now.
One beach paint vehicle is placed on the top of opaque drawing and and use steadily action to smear, make its bone dry or under proper temperature, toast with No.9 coiling applicator.
Use spectrometer, as the Cary 5000UV/Vis/NIR spectrometer of being furnished with 150mm diameter integrating sphere is with 10 nanometers from 300 to 2500 nanometers record reflection percentage at interval.On the black and white part of opaque drawing, measure.Relatively on the black with white on spectrum thick to guarantee paint film optics in whole wavelength coverage.If detect the difference in the spectrum, the thickness that improves lacquer is until there not being difference.This lacquer is considered to " optics is thick " subsequently and measures and spectra re-recorded.
Step 12 ' show the different volumes mark the repetition of selection and step 12 until handling all volume fractions.
This step comprises that preparation contains one group of paint vehicle of colored pigment of nonabsorbable scattering property pigment and a series of volume fractions of known volume mark.
Commute disperses colored pigment, and this pigment can add in the lacquer based mixtures in mixing tank with powder type.As far as the more difficult colored pigment that disperses, method manufacturing and the shake coloring agent concentrate at first black pigment described according to preceding text.In mixing tank, the coloring agent concentrate of required quality is added in the lacquer base then.
Be calculated as to provide and have in dry paint 0.15 nonabsorbable scattering property pigment volume concentration mark and one group of paint vehicle and the nonabsorbable scattering property pigment (preparation has been detailed hereinbefore) that need sneak into and the quality of colored pigment of 0.01,0.02,0.05 and 0.07 colored pigment volume fraction in dry paint.As known or recording in the absorbance measuring process, select these volume fractions in the pigment volume concentration mark, to be linear with the scattering coefficient of guaranteeing to record.
As far as every kind of lacquer, weigh up the amount of colored pigment and nonabsorbable scattering property pigment and add in the mixing tank, and disperseed about 2.5 minutes.Add the resin of additional amount then and further mix this potpourri, for example other 2 minutes.This paint vehicle is ready to apply now.
One beach paint vehicle is placed on the top of opaque drawing and and use steadily action to smear, make its bone dry or under proper temperature, toast with No.150 coiling applicator.It is about 200 microns film to make film thickness that this program repeats for several times (in this embodiment three times), and it is thick that this has been found to be optics.
Use is furnished with the Cary 5000UV/Vis/NIR spectrometer of 150mm diameter integrating sphere with 10 nanometers interval from 300 to 2500 nanometers record reflection percentage.On the black and white part of opaque drawing, measure.Relatively on the black with white on spectrum thick to guarantee paint film optics in whole wavelength coverage.If detect the difference in the spectrum, the thickness that improves lacquer is until there not being difference.This lacquer is considered to " optics is thick " subsequently and measures and spectra re-recorded.
Step 13 ' show the different volumes mark the repetition of selection and step 13 until handling all volume fractions.
First step is by the ratio between reflection percentage (% reflection) calculating K ubelka Munk scattering coefficient and the absorption coefficient.
In order to realize this point, must use the Saunderson equation to proofread and correct the reflection percentage that records to boundary effect.The reflection percentage R of following calculation correction
Proofread and correct:
Then by the Kubelka Munk absorption coefficient of the reflection fractional computation gray paint of proofreading and correct and the ratio (K/S) of Kubelka Munk scattering coefficient
g
Use said method, we can calculate the Kubelka Munk scattering coefficient of colored pigment in black paint and white paint and the ratio of absorption coefficient under a series of colored pigment volume fractions-(K/S) respectively
C, b(K/S)
C, wIt has been found black pigment
non-absorbent scattering pigments
and colored pigments
in the volume fraction of the dried paint film.Also obtained the absorption coefficient (k of black pigment
b) and the scattering coefficient (s of nonabsorbable scattering property pigment
Nas).Can use equation to calculate the Kubelka Munk scattering coefficient and the absorption coefficient (s of (being in the zone of linearity) colored pigment now in dependence to the colored pigment volume fraction
cAnd k
c).
Through contrast
Get by above-mentioned Equation for Calculating
With
Slope of a curve obtains s
cAnd k
c
At first, be determined at the concentration range that can adopt linearity assumption when merging pigment to it.This can be scheduled to or derived by the measurement result of colored pigment in carbon black.
The following calculating of measuring the paint formula of the required color of object of coupling.
Use is furnished with the Cary 5000UV/Vis/NIR spectrometer of 150mm diameter integrating sphere at visible spectrum, as whenever have the reflected by objects number percent of required color of object in 400 to 770 nanometers at a distance from 10 nano measurements.Perhaps, can obtain color of object through one group of parameter.
Use the reflection percentage (R of equation by the correction of the paint film that contains given pigment composition
Proofread and correct) calculate the reflection percentage of the prediction of the paint film contain given pigment composition
Can use the reflection mark of equation by the ratio calculation correction of the Kubelka Munk scattering coefficient of the thick film of the optics that contains given pigment composition and absorption coefficient.
Can use equation to contain the Kubelka Munk scattering coefficient of infinite thick film on the optics of given pigment composition and the ratio of absorption coefficient by their volume fractions in dry paint and their Kubelka Munk absorption coefficient and scattering coefficient calculating.
K wherein
nBe the absorption coefficient of pigment n, s
nBe pigment n scattering coefficient and
Be the volume fraction of pigment n in dry paint.
Can repeat aforementioned calculation to provide on the optics that contains given pigment composition infinite thick film with the 10 nanometers prediction reflection percentage in 400 to 770 nanometer wavelength range at interval.
The value that can regulate the volume fraction of various pigment in dry paint reaches minimum value until the reflection percentage and the summation of the difference of two squares between the target reflection number percent that records that between 400 to 770 nanometers with 10 nanometers are being the prediction at interval.
Can the programming of lacquer metering system be had the lacquer of the required pigment volume concentration mark in the dry paint and mate required color thus with manufacturing then.
Use equation, by between 300 to 2500 nanometers, serving as that the reflection percentage of prediction is at interval calculated total sun reflection number percent of the prediction of the paint film that contains given pigment composition with 10 nanometers
The solar radiation degree is a function of representing the predetermined wavelength of solar radiation emission.
Use correction reflection mark (R correction) the calculating reflection percentage of equation, the % reflection by the paint film that contains given pigment composition.
Can use the reflection mark of equation by the ratio calculation correction of the Kubelka Munk scattering coefficient of infinite thick film on the optics that contains given pigment composition and absorption coefficient:
Can use equation to contain the Kubelka Munk scattering coefficient of the thick film of the optics of given pigment composition and the ratio of absorption coefficient by their volume fractions in dry paint and their Kubelka Munk absorption coefficient and scattering coefficient calculating.
K wherein
nBe the absorption coefficient of pigment n, s
nBe pigment n scattering coefficient and
Be the volume fraction of pigment n in dry paint.Can calculate thus as this pigment composition of the function of film thickness at the bottom of the fast black base with white substrate on total sun reflection rate.
This method is implemented in lacquer and makes before with the color-match of the painted material of the given set of non-scattering property or megacryst material and the required ability of total sun reflection of prediction and heat built-up.This is favourable, because not only the color of lacquer is accurately mated color of object, and can quantitative forecast contains the total sun reflection and the heat built-up of the material of colored pigment.This is particularly useful, because it can effectively develop " cool colour " material.
The megacryst granularity of the preferred scattering property pigment that uses can make this method extend to than volume fraction higher in the conventional system in the cool colour material.
Kubelka Munk method is used for measuring the visible reflectance spectrum of the material that contains the non-scattering property colored pigment potpourri that combines with strong scattering property TiO 2 pigment (being nonabsorbable scattering property pigment) traditionally.The use of this method under the high titania volume fraction with at colored pigment owing to more be a problem during the total scattering of this material of crowding effect appreciable impact.More difficult prediction in to the crowding effect of scattering even more significant spectrum near infrared part.
This method is specially adapted to design and is used in the cool colour material; Promptly in spectrum near infrared part, has the pigment in the material of high reflection, because be used for the bigger crystal size of those scattering property pigment that reflection that the scattering property pigment of cool colour purposes has than is used in near-infrared radiation usually has no the purposes of importance.When using these, make the crowded volume fraction that becomes important of pigment obviously higher, so said method can be used for than the situation of non-cool colour material such prescription of wide region more than the megacryst material.For example; Advantageously find; At coarsegrain pigment (about 1 micron) when being used to characterize; Below about 30% pigment volume concentration mark, there is the linear relationship between scattering coefficient and the volume fraction, and, only below about 10% pigment volume concentration mark, just has this linear relationship the particle of 0.3 micron size.
Fig. 3 shows the commercial run of the embodiment of utilizing method of the present invention.Through this commercial run of color-match system implementation.Its color and lacquer coupling are hoped in the reception of step 30 show sample material.This color is a color of object.In the visible light part of spectrum, obtain the reflectance spectrum of sample.In the present embodiment, this with 10 nanometer resolutions between 400 to 770 nanometers.
In step 31, receive self-metering spectroscopic data and be sent to color model counter 32.Color model counter 32 stores the absorption coefficient and the scattering coefficient of various colored pigments.Obtain these coefficients according to said method.Especially, step 33 illustration the measurement of spectrum of aforesaid each pigment.Step 34 shows the editor of absorption coefficient and the scattering coefficient be used for importing color model counter 32.
In step 35, from the paint formula that 32 outputs of color model counter are calculated, it comprises the volume fraction of pigment required in the dry paint.This output comprises the CIE L*a*b* color space 1976 coordinates (aspect brightness L* and chromaticity coordinates a* and b*) of match.In addition, counter 32 generates color of object L*a*b* color space L*, a* and b*.The output of this counter comprises that also total sun reflection number percent of prediction of match is so that can assess the thermodynamic behavior of lacquer.In addition, generate color of object and this counter and confirm as the predicted difference Δ E between the color of the prescription that matees this color of object
76Recognize that the color-match ability of this system is limited by the colored pigment that can get, so Δ E
76How approaching value be Show Color coupling industrial standard.
In step 36, in the pigment WT-MSR of preparation coupling lacquer, use output from step 35.The composition of output comprises the quality of all components of the wet paint that is calculated by required pigment volume concentration (PVC) in the dry paint of measuring through counter 32.This calculating need be known the density of all material that exists in wet paint and the dry paint.
As the part of quality control program, step 37 relates to the measurement of the reflectance spectrum of coupling lacquer.On visible spectrum, between 400 to 770 nanometers, obtain spectrum especially with 10 nanometer resolutions.Disposal data and feed back to color model counter 32 (for clarity sake in Fig. 3, showing twice) in step 38.Step 39 carry out verification step with the inspection predicted value have with respect to the actual paint vehicle of processing how accurate.Inaccuracy in error in this coefficient that can be used in identification step 33 and 34 obtaining or the step 36 in the used pigment WT-MSR.
If the Lab color space values of prediction, total sun reflection rate or Δ E
76Value is enough accurate, and this method can advance to step 41, can get into overall production so that send to client at this this lacquer.Dotted line 42 shows can carry out further quality control inspection to client's system.For example, client's pigment WT-MSR possibly produce various colors slightly, and this can remedy through this additional examination.
Claims (23)
1. be used to measure the method for sign scattering property colored pigment of absorption coefficient and the scattering coefficient of scattering property colored pigment, said method comprises step:
I) obtain the reflectance spectrum of scattering property colored pigment and the nonabsorbable scattering property pigment basically potpourri under many different volume fractions, wherein said basic nonabsorbable scattering property pigment has the granularity greater than 0.6 micron.
2. according to the process of claim 1 wherein that said method comprises step:
Ii) obtain scattering coefficient as the said basic nonabsorbable scattering property pigment of the function of volume fraction and wavelength.
3. according to the method for claim 1 or claim 2; Wherein said method comprises the step of the nonabsorbable scattering property pigment of the granularity of measuring scattering property colored pigment and having of selecting therewith the to characterize granularity in 0.5 micron of the granularity of scattering property colored pigment, and condition is that the granularity that records is greater than 0.6 micron.
4. according to each method of aforementioned claim, wherein said basic nonabsorbable scattering property pigment comprises the coarsegrain TiO 2 pigment.
5. according to each method of aforementioned claim, wherein said scattering property colored pigment is a granularity greater than 0.6 micron coarsegrain pigment.
6. according to each method of aforementioned claim, wherein said scattering property colored pigment is selected from: the composite inorganic colored pigment; Nickel titanate antimony; Metatitanic acid chromium antimony; Manganese titanate antimony; The siderochrome palm fibre; Chrome green-Hei haematite; Aluminic acid cobalt blue spinel; The cobalt titanate chlorospinel; With the cobalt chromite chlorospinel.
7. according to each method of aforementioned claim, wherein in visible spectrum and ultrared wavelength, measure the reflectance spectrum of scattering property colored pigment at least.
8. according to each method of aforementioned claim, wherein in 300 nanometer to 2500 nanometer wavelength range, measure the reflectance spectrum of scattering property colored pigment.
9. according to each method of aforementioned claim, wherein said method comprises step:
Iii) under many different volume fractions, obtain absorption coefficient as the weak scattering property black pigment of the function of wavelength; With
Iv) obtain the further reflectance spectrum of said scattering property colored pigment and the said black pigment potpourri under many different volume fractions.
10. according to the method for claim 9, wherein said weak scattering property black pigment is a carbon black.
11., wherein use the optical thick layer of potpourri to obtain said reflectance spectrum and said further reflectance spectrum according to the method for claim 9 or claim 10.
12. according to each method of claim 9 to 11, wherein said method comprises step:
V) merge said reflectance spectrum and further reflectance spectrum and calculating Kubelka Munk absorption coefficient and scattering coefficient as the scattering property colored pigment of the function of scattering property colored pigment volume fraction and wavelength.
13. according to the method for claim 12, wherein said method comprises step:
(coefficient determination that calculates v) is in the required scattering property colored pigment volume fraction of coupling target reflection spectrum on spectroscopy vi) to use step.
14. according to the method for claim 12, wherein said method comprises step:
(vii) the WT-MSR programming is prepared preparation with the volume fraction that basis calculates.
15. according to the method for claim 13, wherein to different colored pigment repeating step (i), (iv) and (v) the & step (vi) comprises the volume fraction of measuring each colored pigment with the coupling color of object.
16. according to each method of aforementioned claim, wherein the resolution with basic 10 nanometers obtains reflectance spectrum.
17. according to the method for claim 12, wherein said method comprise calculating as the colored pigment of the function of film thickness in step for the total sun reflection under the definite volume fraction of coupling color of object.
18. according to the method for claim 17, wherein said method comprises the step of the total sun reflection of calculating at least a portion visible spectrum and infrared spectrum.
19. according to the method for claim 18, wherein said method comprises the step of the total sun reflection of calculating in 300 to 2500 nanometer wavelength range.
20. the method that is fit to implement claim 1 is to characterize the pigment characterization system of scattering property colored pigment.
21. pigment characterization system according to claim 20; Wherein said system comprises the color of object matched element that is fit to the control WT-MSR; The characterization information that said color of object matched element is fit to use scattering property colored pigment is to measure the required volume fraction of coupling color of object, and said color of object matched element also is fit to the control WT-MSR to make the coloring matter of coupling color of object.
22. pigment characterization system according to claim 20 or claim 21; Wherein said system comprises comparator; It is fit to measure the spectral quality of coloring matter and they and color of object is compared; And if in predetermined threshold, do not detect coupling, the concentration of regulating colored pigment would be to obtain more approaching coupling.
23. according to the pigment characterization system of claim 20, wherein said system comprises and is adapted at using at least a portion visible spectrum and the infrared spectrum said reflectance spectrum to calculate total sun reflection counter of total sun reflection.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1005344A GB2479148A (en) | 2010-03-30 | 2010-03-30 | Method of characterising a scattering coloured pigment |
| GB1005344.5 | 2010-03-30 | ||
| PCT/GB2011/050619 WO2011121339A1 (en) | 2010-03-30 | 2011-03-25 | Method of characterising a scattering coloured pigment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102822664A true CN102822664A (en) | 2012-12-12 |
| CN102822664B CN102822664B (en) | 2016-04-20 |
Family
ID=42228605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180017184.7A Active CN102822664B (en) | 2010-03-30 | 2011-03-25 | Characterize the method for scattering colored pigment |
Country Status (15)
| Country | Link |
|---|---|
| US (1) | US9169399B2 (en) |
| EP (1) | EP2553426B1 (en) |
| JP (1) | JP5931048B2 (en) |
| KR (1) | KR101792639B1 (en) |
| CN (1) | CN102822664B (en) |
| AU (1) | AU2011234213B2 (en) |
| BR (1) | BR112012023405A2 (en) |
| CA (1) | CA2793356A1 (en) |
| GB (1) | GB2479148A (en) |
| MX (1) | MX2012010902A (en) |
| MY (1) | MY166700A (en) |
| SG (2) | SG10201501660XA (en) |
| UA (1) | UA107373C2 (en) |
| WO (1) | WO2011121339A1 (en) |
| ZA (1) | ZA201207054B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103558163A (en) * | 2013-06-15 | 2014-02-05 | 佛山纬达光电材料有限公司 | Detection method for dye system polarizer dyeing solution composition concentration change |
| CN103646393A (en) * | 2013-11-22 | 2014-03-19 | 深圳职业技术学院 | An oil painting primary color pigment spectrum prediction method |
| CN104165844A (en) * | 2014-07-25 | 2014-11-26 | 清华大学 | Spectral measurement and blind source separation combined mixed pigment component analytical method |
| CN105372180A (en) * | 2014-08-25 | 2016-03-02 | 联合大学 | Method and system for comparing colored substances |
| CN105451815A (en) * | 2013-08-22 | 2016-03-30 | 默克专利有限公司 | Diffusion pigments in phototherapy |
| CN110998284A (en) * | 2017-05-24 | 2020-04-10 | 宣伟投资管理有限公司 | Multi-angle paint composition color strength measurement |
| CN112557309A (en) * | 2020-12-30 | 2021-03-26 | 湖南华曙高科技有限责任公司 | Method for detecting carbon black in polymer material for selective laser sintering |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507505B (en) * | 2011-11-10 | 2014-03-05 | 攀枝花鼎星钛业有限公司 | Determination method for covering power of titanium dioxide |
| NZ746230A (en) | 2012-09-12 | 2020-06-26 | Nine Ip Ltd | Netting, crop cover, and ground cover materials |
| US9816862B2 (en) * | 2013-03-14 | 2017-11-14 | Ppg Industries Ohio, Inc. | Systems and methods for texture analysis of a coated surface using multi-dimensional geometries |
| US9753436B2 (en) * | 2013-06-11 | 2017-09-05 | Apple Inc. | Rotary input mechanism for an electronic device |
| CN106663357B (en) * | 2015-06-23 | 2019-01-22 | 华中科技大学 | It is a kind of based on the Characteristics of The Aerosol parameter method for sensing of dual wavelength scattered signal and its application |
| WO2024062037A1 (en) | 2022-09-22 | 2024-03-28 | Sun Chemical B.V. | Fast dispersing pigment brown 29 |
| WO2024097650A1 (en) * | 2022-11-01 | 2024-05-10 | Ppg Industries Ohio, Inc. | Techniques for mapping total solar reflectance to coatings |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1723174A (en) * | 2002-12-09 | 2006-01-18 | 帝化株式会社 | Titanium oxide particles having useful properties and method for production thereof |
| WO2008121749A1 (en) * | 2007-04-02 | 2008-10-09 | Certainteed Corporation | Solar heat-reflective roofing granules, solar heat-reflective shingles, and process for producing same |
| CN101506633A (en) * | 2006-08-22 | 2009-08-12 | 纳幕尔杜邦公司 | Method for color matching |
| WO2009136141A1 (en) * | 2008-05-07 | 2009-11-12 | Tioxide Europe Limited | Titanium dioxide |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5272518A (en) * | 1990-12-17 | 1993-12-21 | Hewlett-Packard Company | Colorimeter and calibration system |
| JP3064430B2 (en) * | 1990-12-18 | 2000-07-12 | 関西ペイント株式会社 | Computer toning method |
| US5385960A (en) * | 1991-12-03 | 1995-01-31 | Rohm And Haas Company | Process for controlling adsorption of polymeric latex on titanium dioxide |
| JP4039470B2 (en) * | 1997-05-09 | 2008-01-30 | 日清紡績株式会社 | Method for obtaining the blending ratio of the coloring material to the glittering material or the blending amount of the glittering material in the computer toning of the metallic / pearl based paint |
| US6166814A (en) * | 1997-09-30 | 2000-12-26 | Georgia Tech Research Corp. | Method and apparatus for color matching paints |
| JPH11326054A (en) * | 1998-05-21 | 1999-11-26 | Sumika Color Kk | Predecting method for k/s parameter of mixed coloring material, measuring method for spectral reflectance of coloring material and color matching method for mixed coloring material |
| JP3576076B2 (en) * | 2000-06-30 | 2004-10-13 | 松下電器産業株式会社 | Whiteness evaluation method and illumination light source / illumination device |
| JP2002226735A (en) * | 2001-02-02 | 2002-08-14 | Nippon Paint Co Ltd | Computer-aided color matching method for coating liquid and manufacturing method of coating using the same |
| JP4027075B2 (en) * | 2001-09-17 | 2007-12-26 | クボタ松下電工外装株式会社 | INORGANIC PAINT, ITS COATED PLATE AND COATING METHOD |
| JP2003226830A (en) * | 2002-02-05 | 2003-08-15 | Shijo Sozo Kk | Colorant also useful as coating material |
| US7167246B1 (en) * | 2002-07-12 | 2007-01-23 | The Sherwin-Williams Company | Method of color matching metallic paints |
| JP2004083908A (en) * | 2002-08-08 | 2004-03-18 | Kansai Paint Co Ltd | Method for supplying color matching coating material |
| JP2007505202A (en) * | 2003-05-07 | 2007-03-08 | イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー | Method for producing color-matched paint and apparatus used therefor |
| US8287998B2 (en) * | 2003-12-01 | 2012-10-16 | Anthony David Skelhorn | Composition of a thermaly insulating coating system |
| DE102004035066A1 (en) * | 2004-05-26 | 2006-03-02 | Basf Ag | Process for radiation curing of coatings |
| WO2006078026A1 (en) * | 2005-01-24 | 2006-07-27 | Cosmetechno Co., Ltd. | Method of selecting titanium oxide or pigment taking into account environment under multiple light sources, and composition thereof |
| CN102144154B (en) * | 2008-10-01 | 2015-04-22 | 东卡莱罗纳大学 | Methods and systems for optically characterizing a turbid material using a structured incident beam |
-
2010
- 2010-03-30 GB GB1005344A patent/GB2479148A/en not_active Withdrawn
-
2011
- 2011-03-25 EP EP11718144.6A patent/EP2553426B1/en active Active
- 2011-03-25 SG SG10201501660XA patent/SG10201501660XA/en unknown
- 2011-03-25 US US13/638,120 patent/US9169399B2/en active Active
- 2011-03-25 MY MYPI2012004061A patent/MY166700A/en unknown
- 2011-03-25 CN CN201180017184.7A patent/CN102822664B/en active Active
- 2011-03-25 UA UAA201212381A patent/UA107373C2/en unknown
- 2011-03-25 BR BR112012023405A patent/BR112012023405A2/en not_active Application Discontinuation
- 2011-03-25 WO PCT/GB2011/050619 patent/WO2011121339A1/en active Application Filing
- 2011-03-25 JP JP2013501942A patent/JP5931048B2/en not_active Expired - Fee Related
- 2011-03-25 KR KR1020127028532A patent/KR101792639B1/en active IP Right Grant
- 2011-03-25 AU AU2011234213A patent/AU2011234213B2/en not_active Ceased
- 2011-03-25 MX MX2012010902A patent/MX2012010902A/en active IP Right Grant
- 2011-03-25 SG SG2012070546A patent/SG184217A1/en unknown
- 2011-03-25 CA CA2793356A patent/CA2793356A1/en not_active Abandoned
-
2012
- 2012-09-19 ZA ZA2012/07054A patent/ZA201207054B/en unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1723174A (en) * | 2002-12-09 | 2006-01-18 | 帝化株式会社 | Titanium oxide particles having useful properties and method for production thereof |
| CN101506633A (en) * | 2006-08-22 | 2009-08-12 | 纳幕尔杜邦公司 | Method for color matching |
| WO2008121749A1 (en) * | 2007-04-02 | 2008-10-09 | Certainteed Corporation | Solar heat-reflective roofing granules, solar heat-reflective shingles, and process for producing same |
| WO2009136141A1 (en) * | 2008-05-07 | 2009-11-12 | Tioxide Europe Limited | Titanium dioxide |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103558163A (en) * | 2013-06-15 | 2014-02-05 | 佛山纬达光电材料有限公司 | Detection method for dye system polarizer dyeing solution composition concentration change |
| CN103558163B (en) * | 2013-06-15 | 2016-04-06 | 佛山纬达光电材料有限公司 | The detection method of a kind of dyestuff system polaroid dyeing liquor constituent concentration change |
| CN105451815A (en) * | 2013-08-22 | 2016-03-30 | 默克专利有限公司 | Diffusion pigments in phototherapy |
| CN103646393A (en) * | 2013-11-22 | 2014-03-19 | 深圳职业技术学院 | An oil painting primary color pigment spectrum prediction method |
| CN103646393B (en) * | 2013-11-22 | 2017-03-15 | 深圳职业技术学院 | Oil painting base colors of pigment Forecast of Spectra method |
| CN104165844A (en) * | 2014-07-25 | 2014-11-26 | 清华大学 | Spectral measurement and blind source separation combined mixed pigment component analytical method |
| CN105372180A (en) * | 2014-08-25 | 2016-03-02 | 联合大学 | Method and system for comparing colored substances |
| CN110998284A (en) * | 2017-05-24 | 2020-04-10 | 宣伟投资管理有限公司 | Multi-angle paint composition color strength measurement |
| CN112557309A (en) * | 2020-12-30 | 2021-03-26 | 湖南华曙高科技有限责任公司 | Method for detecting carbon black in polymer material for selective laser sintering |
Also Published As
| Publication number | Publication date |
|---|---|
| SG10201501660XA (en) | 2015-04-29 |
| BR112012023405A2 (en) | 2018-05-15 |
| CA2793356A1 (en) | 2011-10-06 |
| KR20130021381A (en) | 2013-03-05 |
| EP2553426A1 (en) | 2013-02-06 |
| GB201005344D0 (en) | 2010-05-12 |
| SG184217A1 (en) | 2012-11-29 |
| US9169399B2 (en) | 2015-10-27 |
| CN102822664B (en) | 2016-04-20 |
| ZA201207054B (en) | 2013-05-29 |
| MX2012010902A (en) | 2012-11-23 |
| GB2479148A (en) | 2011-10-05 |
| GB2479148A8 (en) | 2011-10-26 |
| KR101792639B1 (en) | 2017-11-20 |
| JP5931048B2 (en) | 2016-06-08 |
| EP2553426B1 (en) | 2019-05-01 |
| AU2011234213A1 (en) | 2012-09-27 |
| UA107373C2 (en) | 2014-12-25 |
| MY166700A (en) | 2018-07-18 |
| AU2011234213B2 (en) | 2015-10-01 |
| US20130016339A1 (en) | 2013-01-17 |
| WO2011121339A1 (en) | 2011-10-06 |
| JP2013524197A (en) | 2013-06-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102822664A (en) | Method of characterising scattering coloured pigment | |
| US7804597B2 (en) | Method for matching paint | |
| EP2000794B1 (en) | Apparatus and method for determining a spectral bi-directional appearance property of a surface | |
| CN104145178B (en) | For the color formulas method of calculation of matt color standard | |
| JP2007505202A (en) | Method for producing color-matched paint and apparatus used therefor | |
| MX2015005320A (en) | Texture analysis of a painted surface using specular angle data. | |
| CN101821343A (en) | Energy saving paint | |
| CN110998284B (en) | Multi-angle paint composition color strength measurement | |
| CN113791746B (en) | Method, device, system and medium for re-matching residual ink of special offset printing color | |
| Gueli et al. | Influence of vehicle on historical pigments colour | |
| Zhao et al. | Predicting the spectral reflectance factor of translucent paints using Kubelka‐Munk turbid media theory: Review and evaluation | |
| US20140350867A1 (en) | System for producing liquid composition | |
| Sharafudeen | A spectroscopic method for quick evaluation of tint strength and tint tone of titania (rutile) pigment and factors affecting them | |
| US6636315B2 (en) | Method for estimating the quality of distribution of pigments in a matrix | |
| Schaeffer | Hiding power | |
| WO2024029295A1 (en) | Hiding power evaluation method | |
| Kirchner | Instrumental colour mixing to guide oil paint artists | |
| Shah et al. | Kubelka‐munk analysis of absorptance in the presence of scattering, including surface‐reflection correction to transmittance | |
| Meichsner et al. | Precision in the reproduction of colored coatings | |
| Turgunovna | CONFERENCE PAPERS IN ENGLISH | |
| Arnold | Techbrief: Quickly Analyzing Thermoplastic Road-Marking Material for Titanium Dioxide | |
| Dumitru et al. | Improving hiding power obtained by variation of fillers for interior emulsion paints | |
| Chung et al. | Paint and pigment industry | |
| Spitzer et al. | A novel approach to color matching of automotive coatings | |
| El-Shawish et al. | Determination of some trace elements in white oil based paints and pigments |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |